Rep. Donna Edwards, Maryland Congressional District 4

Lois Gibbs, Director, Center for Health, Environment, and Justice

Denis Hayes, President, Bullitt Foundation

Randall Hayes, Founder, Rainforest Action Network

Sarah Hodgdon, Conservation Director, Sierra Club

Dolores Huerta, Co-founder, United Farm Workers

Robert F. Kennedy, Jr., President, Waterkeeper Alliance

Hunter Lovins, Founder, Natural Capitalism Solutions

David Orr, Paul Sears Distinguished Professor, Oberlin College

Phil Radford, Executive Director, Greenpeace

Justin Ruben, Executive Director, MoveOn.org

Heather Smith, Executive Director, Rock the Vote